How to find the right Mini-SAS Cables AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Mini-SAS Cables
- Connector generation
- Internal connectors are SFF-8087 (older 6 Gb/s cards) and SFF-8643 (HD, 12 Gb/s cards). External connectors are SFF-8088 and SFF-8644. These four connectors are physically incompatible with one another, so read the port on the HBA or backplane.
- Forward versus reverse breakout
- Forward breakout runs from a Mini-SAS controller to individual drives. Reverse breakout runs from motherboard SATA ports to a Mini-SAS backplane. The two cables look identical but are wired in opposite directions and do not work in each other's role.
- Drive-end connector
- Use SATA-style ends for SATA drives. SAS drives need SFF-8482 ends, which include a power pass-through, or a SAS backplane. SAS drives will not plug into SATA connectors.
- Length
- Keep internal 12 Gb/s runs to about 1 m or less. Longer passive runs can cause link errors at higher speeds.
Brands that matter
- Cable Matters: Widely used for SFF-8087 and SFF-8643 breakout cables.
- 10Gtek: Good-value SAS and HBA cabling.
- Supermicro: OEM cables made to fit its server chassis and backplanes.
- StarTech: Internal and external Mini-SAS cables plus adapters.
- Broadcom: OEM cables for LSI and Broadcom HBAs.
What to avoid
- Reverse breakout cables when you are connecting a SAS HBA to drives.
- Listings that do not state the SFF connector number.
Questions
Can a SAS controller run SATA drives?
Yes, SAS controllers accept SATA drives through a breakout cable. A SATA controller cannot run SAS drives.